Mike P

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Somewhere I read an article or post describing how to modify a trainer for fun fly events. Now that I need it, of course I can not find it again. Anyone remember the article?
Thanks, Mike

beepee

Mikee,

Can't guide you to the article, but I can comment on some modifications. I assume you are talking about permanent changes. I did much the same with my Great Planes Trainer 60. It had a symmetrical wing, but that is not a required feature. I shortened the tail moment (maybe about 10%), built a new wing with no dihedral and took a rib bay out on both sides (stubbing the wing by a total of 6"). With some work, you can make the same changes to the existing wing. Where possible, increasing the size of the control surfaces will help. I also converted to taildragger, but that is not necessarily good for fun fly work.

Have fun!

Bedford

bonedaddy41

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Funny you should mention that Some of the people I fly with still think I'm crazy - but I have modified a few trainers in my life.

I am currently flying the 5th (XC5) in a series of Experimental Hanger9 Cessna Advanced Trainers (the previous 4 gave their all in experimentation over the past 6 years). The current version has no dihedral in the wing, the wing was transformed from a rubberband hold-down to a nylon bolt mount, the ailerons and elevator were double in size and the rudder was increased 3 times its original size. I also changed the pivot angle of the rudder to a 90 degree of the flight plane instead of the original 45 degree. While recovering the plane, I built servo mounts in the wing so each aileron is controlled by its own servo instead of the single push-pull servo. Oh yeah, it is also powered by an OS 50SX

As can be expected, it no longer flies like a trainer. Besides being VERY fast and nimble, it has no self-correcting capabilities at all and is the slightest bit "twitchy" in a crosswind. It will tumble, knife-edge and harrier very nicely now

I doubt that there will be an XC6 - I think Hanger9 has discontinued the arf [&o]

Lnewqban

Mke:

Check this one:

http://www.modelaircraft.org/insider/07_09/Fun-Fly.htm

Regards!

Mike P

My Feedback: (2)

I knew I could count on receiving the information I wanted. Thanks to all of you. I am going to incorporate all the ideas into a Spadet. I also liked the idea of over powering the aircraft. What a hoot to see a "trainer" hover. Now I just need the flying skills to pull it off.
Thanks again and Merry Christmas from North Dakota.
Mike

longdan

Have a look at this trainer

http://nz.youtube.com/watch?v=ESpwvfm5oF8